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Cylinder and Associated Key

a technology of associated keys and cylinders, applied in the direction of cylinder locks, tumbler locks, keys, etc., can solve the problem of substantial inability to increase the number of pins, and achieve the effect of increasing the complexity of any picking action

Inactive Publication Date: 2009-11-05
CISA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The aim of the present invention is to provide a cylinder with corresponding key of traditional size which is provided with portions adapted to increase the complexity of any picking actions.
[0008]Within this aim, an object of the present invention is to provide a cylinder with associated key which has a low cost, is relatively simple to provide, and is practical and safe in application.

Problems solved by technology

In view of the small dimensions of a lock of the type being considered, it is substantially not possible to increase the number of pins in order to ensure greater security against picking.

Method used

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  • Cylinder and Associated Key
  • Cylinder and Associated Key
  • Cylinder and Associated Key

Examples

Experimental program
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Effect test

Embodiment Construction

[0022]With reference to the figures, the reference numeral 1 generally designates a cylinder and an associated key.

[0023]The cylinder 1 comprises a stator 2 provided with a substantially cylindrical longitudinal cavity 3 for accommodating a rotor 4 with a longitudinal recess 5 for the insertion of a coded key 6.

[0024]The rotor 4 and the stator 2 comprise a plurality of channels 7, which are substantially aligned and face each other when the cylinder 1 is in the closed configuration.

[0025]The containment channels 7 are designed to accommodate respective pins 8, complementary pins 9 and optional elastic means 7a: the purpose of the pins 8 and complementary pins 9 is to prevent the rotation of the rotor 4 within the stator 2 if the key 6 is not present in the longitudinal recess 5.

[0026]The rotor 4 comprises at least one second passage 10, which is not aligned with the channels 7 and faces, in the closed configuration of the cylinder 1, a corresponding opening 11 of the stator 2: the p...

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PUM

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Abstract

A cylinder with associated key, comprising a stator provided with a longitudinal cavity for accommodating a rotor with a longitudinal recess for the insertion of a coded key. The rotor and the stator comprise channels for accommodating respective pins, complementary pins and any elastic elements. The rotor comprises at least one second passage, the passage and the cavity accommodating at least one respective movable peg, whose head rests against the blade edge of the key when the key is inserted in the recess. The key is provided with suitable contoured regions on its blade edge at the surfaces that face said pegs when inserted in the recess. Each peg has its base inside the respective cavity so as to block the rotation of the rotor with respect to the stator when a key lacking the corresponding contoured regions is inserted.

Description

[0001]The present invention relates to a cylinder with an associated key suitable for installation in doors, entrance doors and in all applications in which a key-controlled closure is provided.BACKGROUND OF THE INVENTION[0002]There are various kinds of lock with respective keys, which achieve the task of closing securely a door by using a variety of different solutions against any picking attempts.[0003]Among cylinder locks, there is considerable interest in those in which the keyway (and therefore also the corresponding key) is substantially flat and in which the pins designed to detect the key act substantially transversely with respect to the keyway (thus acting on flat portions of the key).[0004]These locks are generally identified by the type of key associated with them and are known as flat-key locks.[0005]The risk of picking is avoided by means of the complex coding of the cylinder and of the key: particular picking actions allow to actuate the pins to open the lock even wit...

Claims

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Application Information

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IPC IPC(8): E05B27/00
CPCE05B27/0042E05B19/0017Y10T70/7593
Inventor TALAMONTI, ENZO
Owner CISA